So it's bad to stay in a weight division wherein you can't really make weight, another example is Casimero. he wanted to fight Inoue so he stayed in that division and in the first scheduled fight against Butler, he fell ill. And in the second one, he was caught with the Sauna thingy.
He was already struggling to keep the required weight, it's just too bad for Casimero as he was caught cheating, he could have just move up and be the number 1 contender to fight the champion. For Ancajas here, there's still one more chance for him to avenge his loss, if he wins here, people will stop doubting him, if he losses, then no choice for him but to move up.
I wouldn't directly say that he Casimero is cheating though, probably most boxers are doing that sauna thing to lose more liquid in their body prior to the fight and it could be the norm. What hurts Casimero is that he still has a lot of weight to lose days before the fight. So the issue is that him or someone from his team didn't monitor his weight and didn't do their assignment as far as safety is concern regarding losing that extra pound. But the focus now is Inoue vs Butler, but I'm not sure if the door is close between Inoue and Casimero. Maybe in the next weight class we will see them fight.